/*
 * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
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 *
 *
 */
package javax.swing.plaf.nimbus;

import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
import javax.swing.*;
import javax.swing.Painter;


final class InternalFramePainter extends AbstractRegionPainter {

  //package private integers representing the available states that
  //this painter will paint. These are used when creating a new instance
  //of InternalFramePainter to determine which region/state is being painted
  //by that instance.
  static final int BACKGROUND_ENABLED = 1;
  static final int BACKGROUND_ENABLED_WINDOWFOCUSED = 2;


  private int state; //refers to one of the static final ints above
  private PaintContext ctx;

  //the following 4 variables are reused during the painting code of the layers
  private Path2D path = new Path2D.Float();
  private Rectangle2D rect = new Rectangle2D.Float(0, 0, 0, 0);
  private RoundRectangle2D roundRect = new RoundRectangle2D.Float(0, 0, 0, 0, 0, 0);
  private Ellipse2D ellipse = new Ellipse2D.Float(0, 0, 0, 0);

  //All Colors used for painting are stored here. Ideally, only those colors being used
  //by a particular instance of InternalFramePainter would be created. For the moment at least,
  //however, all are created for each instance.
  private Color color1 = decodeColor("nimbusBase", 0.032459438f, -0.53637654f, 0.043137252f, 0);
  private Color color2 = decodeColor("nimbusBlueGrey", 0.004273474f, -0.039488062f, -0.027450979f,
      0);
  private Color color3 = decodeColor("nimbusBlueGrey", -0.00505054f, -0.056339122f, 0.05098039f, 0);
  private Color color4 = decodeColor("nimbusBlueGrey", -0.01111114f, -0.06357796f, 0.09019607f, 0);
  private Color color5 = decodeColor("nimbusBlueGrey", 0.0f, -0.023821115f, -0.06666666f, 0);
  private Color color6 = decodeColor("control", 0.0f, 0.0f, 0.0f, 0);
  private Color color7 = decodeColor("nimbusBlueGrey", -0.006944418f, -0.07399663f, 0.11372548f, 0);
  private Color color8 = decodeColor("nimbusBase", 0.02551502f, -0.47885156f, -0.34901965f, 0);
  private Color color9 = new Color(255, 200, 0, 255);
  private Color color10 = decodeColor("nimbusBase", 0.004681647f, -0.6274498f, 0.39999998f, 0);
  private Color color11 = decodeColor("nimbusBase", 0.032459438f, -0.5934608f, 0.2862745f, 0);
  private Color color12 = new Color(204, 207, 213, 255);
  private Color color13 = decodeColor("nimbusBase", 0.032459438f, -0.55506915f, 0.18039215f, 0);
  private Color color14 = decodeColor("nimbusBase", 0.004681647f, -0.52792984f, 0.10588235f, 0);
  private Color color15 = decodeColor("nimbusBase", 0.03801495f, -0.4794643f, -0.04705882f, 0);
  private Color color16 = decodeColor("nimbusBase", 0.021348298f, -0.61416256f, 0.3607843f, 0);
  private Color color17 = decodeColor("nimbusBase", 0.032459438f, -0.5546332f, 0.17647058f, 0);
  private Color color18 = new Color(235, 236, 238, 255);


  //Array of current component colors, updated in each paint call
  private Object[] componentColors;

  public InternalFramePainter(PaintContext ctx, int state) {
    super();
    this.state = state;
    this.ctx = ctx;
  }

  @Override
  protected void doPaint(Graphics2D g, JComponent c, int width, int height,
      Object[] extendedCacheKeys) {
    //populate componentColors array with colors calculated in getExtendedCacheKeys call
    componentColors = extendedCacheKeys;
    //generate this entire method. Each state/bg/fg/border combo that has
    //been painted gets its own KEY and paint method.
    switch (state) {
      case BACKGROUND_ENABLED:
        paintBackgroundEnabled(g);
        break;
      case BACKGROUND_ENABLED_WINDOWFOCUSED:
        paintBackgroundEnabledAndWindowFocused(g);
        break;

    }
  }


  @Override
  protected final PaintContext getPaintContext() {
    return ctx;
  }

  private void paintBackgroundEnabled(Graphics2D g) {
    roundRect = decodeRoundRect1();
    g.setPaint(color1);
    g.fill(roundRect);
    path = decodePath1();
    g.setPaint(decodeGradient1(path));
    g.fill(path);
    path = decodePath2();
    g.setPaint(color3);
    g.fill(path);
    path = decodePath3();
    g.setPaint(color4);
    g.fill(path);
    path = decodePath4();
    g.setPaint(color5);
    g.fill(path);
    rect = decodeRect1();
    g.setPaint(color6);
    g.fill(rect);
    rect = decodeRect2();
    g.setPaint(color7);
    g.fill(rect);

  }

  private void paintBackgroundEnabledAndWindowFocused(Graphics2D g) {
    roundRect = decodeRoundRect2();
    g.setPaint(color8);
    g.fill(roundRect);
    path = decodePath5();
    g.setPaint(color9);
    g.fill(path);
    path = decodePath1();
    g.setPaint(decodeGradient2(path));
    g.fill(path);
    path = decodePath6();
    g.setPaint(color12);
    g.fill(path);
    path = decodePath7();
    g.setPaint(color13);
    g.fill(path);
    path = decodePath8();
    g.setPaint(color14);
    g.fill(path);
    path = decodePath9();
    g.setPaint(color15);
    g.fill(path);
    rect = decodeRect1();
    g.setPaint(color6);
    g.fill(rect);
    rect = decodeRect3();
    g.setPaint(color9);
    g.fill(rect);
    rect = decodeRect3();
    g.setPaint(color9);
    g.fill(rect);
    rect = decodeRect3();
    g.setPaint(color9);
    g.fill(rect);
    rect = decodeRect4();
    g.setPaint(decodeGradient3(rect));
    g.fill(rect);
    rect = decodeRect2();
    g.setPaint(color18);
    g.fill(rect);

  }


  private RoundRectangle2D decodeRoundRect1() {
    roundRect.setRoundRect(decodeX(0.0f), //x
        decodeY(0.0f), //y
        decodeX(3.0f) - decodeX(0.0f), //width
        decodeY(3.0f) - decodeY(0.0f), //height
        4.6666665f, 4.6666665f); //rounding
    return roundRect;
  }

  private Path2D decodePath1() {
    path.reset();
    path.moveTo(decodeX(0.16666667f), decodeY(0.12f));
    path.curveTo(decodeAnchorX(0.1666666716337204f, 0.0f),
        decodeAnchorY(0.11999999731779099f, -1.0f), decodeAnchorX(0.5f, -1.0f),
        decodeAnchorY(0.03999999910593033f, 0.0f), decodeX(0.5f), decodeY(0.04f));
    path.curveTo(decodeAnchorX(0.5f, 1.0f), decodeAnchorY(0.03999999910593033f, 0.0f),
        decodeAnchorX(2.5f, -1.0f), decodeAnchorY(0.03999999910593033f, 0.0f), decodeX(2.5f),
        decodeY(0.04f));
    path.curveTo(decodeAnchorX(2.5f, 1.0f), decodeAnchorY(0.03999999910593033f, 0.0f),
        decodeAnchorX(2.8333332538604736f, 0.0f), decodeAnchorY(0.11999999731779099f, -1.0f),
        decodeX(2.8333333f), decodeY(0.12f));
    path.curveTo(decodeAnchorX(2.8333332538604736f, 0.0f),
        decodeAnchorY(0.11999999731779099f, 1.0f), decodeAnchorX(2.8333332538604736f, 0.0f),
        decodeAnchorY(0.9599999785423279f, 0.0f), decodeX(2.8333333f), decodeY(0.96f));
    path.lineTo(decodeX(0.16666667f), decodeY(0.96f));
    path.curveTo(decodeAnchorX(0.1666666716337204f, 0.0f), decodeAnchorY(0.9599999785423279f, 0.0f),
        decodeAnchorX(0.1666666716337204f, 0.0f), decodeAnchorY(0.11999999731779099f, 1.0f),
        decodeX(0.16666667f), decodeY(0.12f));
    path.closePath();
    return path;
  }

  private Path2D decodePath2() {
    path.reset();
    path.moveTo(decodeX(0.6666667f), decodeY(0.96f));
    path.lineTo(decodeX(0.16666667f), decodeY(0.96f));
    path.curveTo(decodeAnchorX(0.1666666716337204f, 0.0f), decodeAnchorY(0.9599999785423279f, 0.0f),
        decodeAnchorX(0.1666666716337204f, 0.0f), decodeAnchorY(2.5f, -1.0f), decodeX(0.16666667f),
        decodeY(2.5f));
    path.curveTo(decodeAnchorX(0.1666666716337204f, 0.0f), decodeAnchorY(2.5f, 1.0f),
        decodeAnchorX(0.5f, -1.0f), decodeAnchorY(2.8333332538604736f, 0.0f), decodeX(0.5f),
        decodeY(2.8333333f));
    path.curveTo(decodeAnchorX(0.5f, 1.0f), decodeAnchorY(2.8333332538604736f, 0.0f),
        decodeAnchorX(2.5f, -1.0f), decodeAnchorY(2.8333332538604736f, 0.0f), decodeX(2.5f),
        decodeY(2.8333333f));
    path.curveTo(decodeAnchorX(2.5f, 1.0f), decodeAnchorY(2.8333332538604736f, 0.0f),
        decodeAnchorX(2.8333332538604736f, 0.0f), decodeAnchorY(2.5f, 1.0f), decodeX(2.8333333f),
        decodeY(2.5f));
    path.curveTo(decodeAnchorX(2.8333332538604736f, 0.0f), decodeAnchorY(2.5f, -1.0f),
        decodeAnchorX(2.8333332538604736f, 0.0f), decodeAnchorY(0.9599999785423279f, 0.0f),
        decodeX(2.8333333f), decodeY(0.96f));
    path.lineTo(decodeX(2.3333333f), decodeY(0.96f));
    path.lineTo(decodeX(2.3333333f), decodeY(2.3333333f));
    path.lineTo(decodeX(0.6666667f), decodeY(2.3333333f));
    path.lineTo(decodeX(0.6666667f), decodeY(0.96f));
    path.closePath();
    return path;
  }

  private Path2D decodePath3() {
    path.reset();
    path.moveTo(decodeX(0.8333333f), decodeY(0.96f));
    path.lineTo(decodeX(0.6666667f), decodeY(0.96f));
    path.lineTo(decodeX(0.6666667f), decodeY(2.3333333f));
    path.lineTo(decodeX(2.3333333f), decodeY(2.3333333f));
    path.lineTo(decodeX(2.3333333f), decodeY(0.96f));
    path.lineTo(decodeX(2.1666667f), decodeY(0.96f));
    path.lineTo(decodeX(2.1666667f), decodeY(2.1666667f));
    path.lineTo(decodeX(0.8333333f), decodeY(2.1666667f));
    path.lineTo(decodeX(0.8333333f), decodeY(0.96f));
    path.closePath();
    return path;
  }

  private Path2D decodePath4() {
    path.reset();
    path.moveTo(decodeX(2.1666667f), decodeY(1.0f));
    path.lineTo(decodeX(1.0f), decodeY(1.0f));
    path.lineTo(decodeX(1.0f), decodeY(2.0f));
    path.lineTo(decodeX(2.0f), decodeY(2.0f));
    path.lineTo(decodeX(2.0f), decodeY(1.0f));
    path.lineTo(decodeX(2.1666667f), decodeY(1.0f));
    path.lineTo(decodeX(2.1666667f), decodeY(2.1666667f));
    path.lineTo(decodeX(0.8333333f), decodeY(2.1666667f));
    path.lineTo(decodeX(0.8333333f), decodeY(0.96f));
    path.lineTo(decodeX(2.1666667f), decodeY(0.96f));
    path.lineTo(decodeX(2.1666667f), decodeY(1.0f));
    path.closePath();
    return path;
  }

  private Rectangle2D decodeRect1() {
    rect.setRect(decodeX(1.0f), //x
        decodeY(1.0f), //y
        decodeX(2.0f) - decodeX(1.0f), //width
        decodeY(2.0f) - decodeY(1.0f)); //height
    return rect;
  }

  private Rectangle2D decodeRect2() {
    rect.setRect(decodeX(0.33333334f), //x
        decodeY(2.6666667f), //y
        decodeX(2.6666667f) - decodeX(0.33333334f), //width
        decodeY(2.8333333f) - decodeY(2.6666667f)); //height
    return rect;
  }

  private RoundRectangle2D decodeRoundRect2() {
    roundRect.setRoundRect(decodeX(0.0f), //x
        decodeY(0.0f), //y
        decodeX(3.0f) - decodeX(0.0f), //width
        decodeY(3.0f) - decodeY(0.0f), //height
        4.8333335f, 4.8333335f); //rounding
    return roundRect;
  }

  private Path2D decodePath5() {
    path.reset();
    path.moveTo(decodeX(0.16666667f), decodeY(0.08f));
    path.curveTo(decodeAnchorX(0.1666666716337204f, 0.0f),
        decodeAnchorY(0.07999999821186066f, 1.0f), decodeAnchorX(0.1666666716337204f, 0.0f),
        decodeAnchorY(0.07999999821186066f, -1.0f), decodeX(0.16666667f), decodeY(0.08f));
    path.closePath();
    return path;
  }

  private Path2D decodePath6() {
    path.reset();
    path.moveTo(decodeX(0.5f), decodeY(0.96f));
    path.lineTo(decodeX(0.16666667f), decodeY(0.96f));
    path.curveTo(decodeAnchorX(0.1666666716337204f, 0.0f), decodeAnchorY(0.9599999785423279f, 0.0f),
        decodeAnchorX(0.1666666716337204f, 0.0f), decodeAnchorY(2.5f, -1.0f), decodeX(0.16666667f),
        decodeY(2.5f));
    path.curveTo(decodeAnchorX(0.1666666716337204f, 0.0f), decodeAnchorY(2.5f, 1.0f),
        decodeAnchorX(0.5f, -1.0f), decodeAnchorY(2.8333332538604736f, 0.0f), decodeX(0.5f),
        decodeY(2.8333333f));
    path.curveTo(decodeAnchorX(0.5f, 1.0f), decodeAnchorY(2.8333332538604736f, 0.0f),
        decodeAnchorX(2.5f, -1.0f), decodeAnchorY(2.8333332538604736f, 0.0f), decodeX(2.5f),
        decodeY(2.8333333f));
    path.curveTo(decodeAnchorX(2.5f, 1.0f), decodeAnchorY(2.8333332538604736f, 0.0f),
        decodeAnchorX(2.8333332538604736f, 0.0f), decodeAnchorY(2.5f, 1.0f), decodeX(2.8333333f),
        decodeY(2.5f));
    path.curveTo(decodeAnchorX(2.8333332538604736f, 0.0f), decodeAnchorY(2.5f, -1.0f),
        decodeAnchorX(2.8333332538604736f, 0.0f), decodeAnchorY(0.9599999785423279f, 0.0f),
        decodeX(2.8333333f), decodeY(0.96f));
    path.lineTo(decodeX(2.5f), decodeY(0.96f));
    path.lineTo(decodeX(2.5f), decodeY(2.5f));
    path.lineTo(decodeX(0.5f), decodeY(2.5f));
    path.lineTo(decodeX(0.5f), decodeY(0.96f));
    path.closePath();
    return path;
  }

  private Path2D decodePath7() {
    path.reset();
    path.moveTo(decodeX(0.6666667f), decodeY(0.96f));
    path.lineTo(decodeX(0.33333334f), decodeY(0.96f));
    path.curveTo(decodeAnchorX(0.3333333432674408f, 0.0f), decodeAnchorY(0.9599999785423279f, 0.0f),
        decodeAnchorX(0.3333333432674408f, 0.0f), decodeAnchorY(2.3333332538604736f, -1.0f),
        decodeX(0.33333334f), decodeY(2.3333333f));
    path.curveTo(decodeAnchorX(0.3333333432674408f, 0.0f), decodeAnchorY(2.3333332538604736f, 1.0f),
        decodeAnchorX(0.6666666865348816f, -1.0f), decodeAnchorY(2.6666667461395264f, 0.0f),
        decodeX(0.6666667f), decodeY(2.6666667f));
    path.curveTo(decodeAnchorX(0.6666666865348816f, 1.0f), decodeAnchorY(2.6666667461395264f, 0.0f),
        decodeAnchorX(2.3333332538604736f, -1.0f), decodeAnchorY(2.6666667461395264f, 0.0f),
        decodeX(2.3333333f), decodeY(2.6666667f));
    path.curveTo(decodeAnchorX(2.3333332538604736f, 1.0f), decodeAnchorY(2.6666667461395264f, 0.0f),
        decodeAnchorX(2.6666667461395264f, 0.0f), decodeAnchorY(2.3333332538604736f, 1.0f),
        decodeX(2.6666667f), decodeY(2.3333333f));
    path.curveTo(decodeAnchorX(2.6666667461395264f, 0.0f),
        decodeAnchorY(2.3333332538604736f, -1.0f), decodeAnchorX(2.6666667461395264f, 0.0f),
        decodeAnchorY(0.9599999785423279f, 0.0f), decodeX(2.6666667f), decodeY(0.96f));
    path.lineTo(decodeX(2.3333333f), decodeY(0.96f));
    path.lineTo(decodeX(2.3333333f), decodeY(2.3333333f));
    path.lineTo(decodeX(0.6666667f), decodeY(2.3333333f));
    path.lineTo(decodeX(0.6666667f), decodeY(0.96f));
    path.closePath();
    return path;
  }

  private Path2D decodePath8() {
    path.reset();
    path.moveTo(decodeX(2.3333333f), decodeY(0.96f));
    path.lineTo(decodeX(2.1666667f), decodeY(0.96f));
    path.lineTo(decodeX(2.1666667f), decodeY(2.1666667f));
    path.lineTo(decodeX(0.8333333f), decodeY(2.1666667f));
    path.lineTo(decodeX(0.8333333f), decodeY(0.96f));
    path.lineTo(decodeX(0.6666667f), decodeY(0.96f));
    path.lineTo(decodeX(0.6666667f), decodeY(2.3333333f));
    path.lineTo(decodeX(2.3333333f), decodeY(2.3333333f));
    path.lineTo(decodeX(2.3333333f), decodeY(0.96f));
    path.closePath();
    return path;
  }

  private Path2D decodePath9() {
    path.reset();
    path.moveTo(decodeX(0.8333333f), decodeY(1.0f));
    path.lineTo(decodeX(0.8333333f), decodeY(2.1666667f));
    path.lineTo(decodeX(2.1666667f), decodeY(2.1666667f));
    path.lineTo(decodeX(2.1666667f), decodeY(0.96f));
    path.lineTo(decodeX(0.8333333f), decodeY(0.96f));
    path.lineTo(decodeX(0.8333333f), decodeY(1.0f));
    path.lineTo(decodeX(2.0f), decodeY(1.0f));
    path.lineTo(decodeX(2.0f), decodeY(2.0f));
    path.lineTo(decodeX(1.0f), decodeY(2.0f));
    path.lineTo(decodeX(1.0f), decodeY(1.0f));
    path.lineTo(decodeX(0.8333333f), decodeY(1.0f));
    path.closePath();
    return path;
  }

  private Rectangle2D decodeRect3() {
    rect.setRect(decodeX(0.0f), //x
        decodeY(0.0f), //y
        decodeX(0.0f) - decodeX(0.0f), //width
        decodeY(0.0f) - decodeY(0.0f)); //height
    return rect;
  }

  private Rectangle2D decodeRect4() {
    rect.setRect(decodeX(0.33333334f), //x
        decodeY(0.08f), //y
        decodeX(2.6666667f) - decodeX(0.33333334f), //width
        decodeY(0.96f) - decodeY(0.08f)); //height
    return rect;
  }


  private Paint decodeGradient1(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.5f * w) + x, (0.0f * h) + y, (0.5f * w) + x, (1.0f * h) + y,
        new float[]{0.0f, 0.3203593f, 1.0f},
        new Color[]{color2,
            decodeColor(color2, color3, 0.5f),
            color3});
  }

  private Paint decodeGradient2(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.5f * w) + x, (0.0f * h) + y, (0.5f * w) + x, (1.0f * h) + y,
        new float[]{0.0f, 0.5f, 1.0f},
        new Color[]{color10,
            decodeColor(color10, color11, 0.5f),
            color11});
  }

  private Paint decodeGradient3(Shape s) {
    Rectangle2D bounds = s.getBounds2D();
    float x = (float) bounds.getX();
    float y = (float) bounds.getY();
    float w = (float) bounds.getWidth();
    float h = (float) bounds.getHeight();
    return decodeGradient((0.5f * w) + x, (0.0f * h) + y, (0.5f * w) + x, (1.0f * h) + y,
        new float[]{0.0f, 0.24251497f, 1.0f},
        new Color[]{color16,
            decodeColor(color16, color17, 0.5f),
            color17});
  }


}
